Boiler compound



252. COMPOSITIONS.

UNITED STATES Cross Reference $4. v Wavy PATENT OFFICE.

FREDERICK ROBINSON, OF SEAFORTH, ONTARIO, CANADA.

BOILER comrormn.

No Drawing.

The invention relates to a new and useful compound for removi ig scale from steam boilers as described in the specification here- 'to following.

This compound consists of the following ingredients: 8 ounces bi romate of otash' 1lb. ly;e (lexivium) l 0 pure; tic soda; 2 lbs. sal soda; 2 lbs. soda ash" these amounts being approximately for steam boilers of a capacity of one thousand to twelve hundred gallons of water; the actual quantities, of course, being varied in accordance with the capacity of the boiler being scaled. Since lye and caustic soda are very similar, they may be termed equivalents e and therefore the l e may be dispensed with and the quantity 0 caustic soda correspondingly increased, which would be 7 lbs. instead of 6 lbs. as set forth in the above proportions; likewise as sal soda and soda ash are both forms of sodium carbonate they may be represented by 4 lbs. of sodium carbonate in this compound. It has been found in the use of this compound that the sal soda and soda ash accelerate its working, but, by reason of the additional expense of including these ingredients, they may be dispensed with when a more economical compound is desirable.

\Vhilst the various ingredients mentioned may be conveniently mixed in their rough commercial form, they may be better compounded and more readily soluble in water by reducing the whole mass to a powder, which renders the compound suitable for depositing in a boiler through either its handhole or manhole, depending upon which of these the boiler is equipped with.

It may be desired, however, to use the compound in the form of a solution and pass Application filed November 19, 1925. Serial No. 70,192.

same into the boiler throu h an injector, in which event the compoun may be put up in any form most convenient for this pur pose. In passing the compound into a boiler in this manner it is to be understood that for boilers of a capacity of one thousand to s. caustwelve hundred gallons of water the amountsof the ingredients as above set forth would hold good, and for boilers of other capaci ties would be varied accordingly.

Experiments have proven this compound to be particularly eflicient in its work; that it will, in a comparatively speaking short space of time, dislod e scale from a boiler wall insmall flake-1i e particles, so infinitesimal as to practically constitute a dust, which may be conveniently removed from the boiler through the blow-off.

In the use of the invention, in order to treat the boiler for the removal of scale, a quantity of the compound will be placed therewithin; such quantity depending upon the nature of the water, the kind of scale present in the boiler, and also the extent of the incrustation.

The compound causes the scale to gradually soften or crumble by continuous boiling for say about forty-eight hours, when it begins to dislodge and commingle with the water in dust form, which dust particles should be ejected from the boiler by the blow-off pipe.

\Vhat I claim is A boiler compound consisting of 8 ounces FREDERICK ROBINSON. 

